In the UK
Andromeda
Appleseed Editions
Arcturus
Brown Reference Group
Evans Brothers
Franklin Watts
Heinemann/Raintree
Kingfisher
Oxford University Press
Scholastic
Wayland
Tick Tock

In the USA
Chelsea House
Crabtree
Gareth Stevens Inc
Lerner
Marshall Cavendish
ME Sharpe
Raintree